ensure that document updates only occur if the vamsas objects have been changed or...

git-svn-id: https://svn.lifesci.dundee.ac.uk/svn/repository/trunk@456 be28352e-c001-0410-b1a7-c7978e42abec

diff --git a/src/uk/ac/vamsas/client/simpleclient/ClientDocument.java b/src/uk/ac/vamsas/client/simpleclient/ClientDocument.java
index ef0a7d5..ee88640 100644 (file)
--- a/src/uk/ac/vamsas/client/simpleclient/ClientDocument.java
+++ b/src/uk/ac/vamsas/client/simpleclient/ClientDocument.java
@@ -164,15 +164,29 @@ public class ClientDocument extends uk.ac.vamsas.client.ClientDocument implement
  * verify that newr version is really an intact version of the 
  * @param newVersion (may be modified)
  * @param oldVersion 
+ * @param modflag 
  * @return true if newVersion is a valid root that preserves original references
  */
-  private boolean isValidUpdate(VAMSAS newVersion, final VAMSAS oldVersion) {
+  private boolean isValidUpdate(VAMSAS newVersion, final VAMSAS oldVersion, ClientDocument modflag) {
     // ideal - this cascades down the two structures, ensuring that all ID'd objects in one are present in the other.
     if (oldVersion==newVersion) {
       // may be a virgin root element.
       if (!newVersion.isRegistered())
-        _registerObject(newVersion); // TODO: check - this call hasn't been tested.
-      // Should retrieve original version and compare - unless local hashes can be used to determine if resultSet has been truncated.
+      {
+        _registerObject(newVersion); // TODO: check - this call hasn't been tested. (seems to work now)
+        modflag.isModified=true;
+      }
+      // TODO: Should attempt to repair document if client app has deleted/broken bits of it
+      if (oldVersion.is__stored_in_document()) {
+        // retrieve compare hashCodes to detect update.
+        if (oldVersion.get__last_hash()!=oldVersion.hashCode())
+        {
+          log.debug("Modified hashcode for vamsas root "+oldVersion.getVorbaId());
+          modflag.isModified = true;
+        } else {
+          log.debug("Unmodified vamsas root "+oldVersion.getVorbaId());
+        }
+      }
       // just do internal validation for moment.
       try {
         if (SimpleClientConfig.validateUpdatedRoots())
@@ -187,10 +201,16 @@ public class ClientDocument extends uk.ac.vamsas.client.ClientDocument implement
     } else {
       // redundant ? if (oldVersion.is__stored_in_document())
       if (!newVersion.isRegistered())
+      {
         _registerObject(newVersion);
+        modflag.isModified=true;
+      }
       try {
         if (SimpleClientConfig.validateMergedRoots())
+        {
           newVersion.validate();
+        }
+        modflag.isModified=true;
         return true;
       }
       catch (Exception e)
@@ -261,8 +281,8 @@ public class ClientDocument extends uk.ac.vamsas.client.ClientDocument implement
     for (int i=0,j=original.length; i<j; i++) {
       int k = _contains(original[i], newr);
       if (k>-1) {
-        if (isValidUpdate(newr[k], original[i])) {
-          modified=true;
+        if (isValidUpdate(newr[k], original[i], modflag)) {
+          // set by isValidUpdate if the hashcodes were really different from last store 
           rts.add(newr[k]);
           newr[k]=null;
         } else {
@@ -279,14 +299,12 @@ public class ClientDocument extends uk.ac.vamsas.client.ClientDocument implement
     for (int i=0,j=newr.length; i<j; i++) {
       if (newr[i]!=null) {
         rts.add(newr[i]);
-        modified=true;
+        modflag.isModified=true;
       }
     }
     newr = new VAMSAS[rts.size()];
     for (int i=0,j=rts.size(); i<j; i++)
       newr[i] = (VAMSAS) rts.get(i);
-    if (modflag!=null)
-      modflag.isModified = modified;
     return newr;
   }